Improvement in rotary pumps and blowers



ATTEST:

G. SHONE.

ROTARY PUMP AND BLOWER.

Patented May 1.6, 1876.

\PgTERS. PHOTO-LI'DIOGHAPMER, WASHINGTON. D c- UNITED S ATES PATENT OFFICE.

GEORGE SHONE, OF EAST ST. LOUIS, ILLINOIS.

IMPROVEMENT IN ROTARY PUMPS AND BLOWERS.

Specification forming part of Letters Patent No. 177,575, dated May 16, 1876; application filed J nne 7, 1875.

To all whom it may concern Be it known that I, GEORGE SHoNE, of East St. Louis, St. Clair county, State of Illinois, have invented a certain new and useful Improvement in Rotary Pumps and Blowers, of which the following is a specification:

My improvement relates toa pump or blower having two' pistons counterparts of each other, and rotating in a single cylinder or case.

In my improvement these pistons'have longitudinal cogs the whole length, whose edges fit snugly the sides of the cylinder or case, and the cogs are of such a shape as to make a tight joint or contact between the teeth of the wheels or pistons as they rotate. The water is carried around in the spaces between the teeth and the ends of the cylinder or case, and is discharged at the opposite side to that at which it flows in.

My invention also applies to the stand upon which the cylinder or case is supported, and which allows universal motion in the case to direct a discharge-nozzle in any direction.

In the drawings, Figure 1 is a section at X X, Fig. 2. Fig. 2 is a section at X X, Fig. 1.'

A is the foot. Bis the standard, having a collar, 0. Above the collar 0 is an arbor, D, on which turns the head E. This head may consist of a cross-coupling, and has horizontal arms F ending in square ends G G, which pass through mortises in the upright arms H H. The upper ends of the arms H have bearings I for the gudgeons J of the cylinder or case -ried into the upper part or chamber, N, of the case (by the teeth in traveling upward at the semicircular sides of the case) cannot return to the chamber N, but is forced out of the nozzle 0. The sides of the pistons fit the-semicircular sides K of the case, and the ends of the pistons fit snugly the ends L of the case. 1? is the shaft, by which the piston M is driven, and this shaft passes through the bossJ, and is provided with a stuffingbox, Q. The gudgeons R of the pistons have bearings in the cylinder-heads, the bearing-sockets extending into the gudgeons or bosses J J. The piston M is driven by the piston M through the medium of the cogs m'u'pon their peripheries. In a hand-pump, as shown, the piston M is driven by a crank, T, upon the shaft P, but in a power pump or blower the shaft P would carry a pulley, cogwh'eel, or frictionwheel. The case Kin a power pump or blower would be a fixture, and its eduction-opening 0 might communicate with a discharge-pipe or flexible hose and nozzle. S is the supply hose or pipe of the pump. When used as a blower the supply-pipe S would be dispensed with. When used as a hand-pump the hose-coupling (at S) may be used as a handle to turn the I case K on its bearings D I I to present the nozzle 0 in any desired direction. I The whole, or any part of the interior surface of the case K, may be lined with leather or any suitable fibrous material, k, to make a close packing with the teeth mand the ends of the pistons. As shown, the apparatus is, portable, but it may, if desired, be made immovable by firmly attaching its foot A to the I claim as my invention- 1. The combination'of the pump-case K, supporting-frame F G H, swivel-head E, arbor D, and supporting-base A B, substantially as set forth. I

2. The combination of the cogged pistons M M, gudgeons R, bosses J, and bearings l, for supporting the case K and its contained piston M on the standards H, in the manner explained, substantially as set forth.

a GEORGE SHONE.

Witnesses:

SAML. KNIGHT, ROBERT BURNS. 

